ubuntuone-control-panel-gtk crashed with AttributeError in remove_urgency(): 'gobject.GProps' object has no attribute 'urgent'

[Barkhat]

Binary package hint: ubuntuone-control-panel

While file syncing this error box pops up randomly and continuously.
 "Sorry, Ubuntu One closed unexpectedly. "
I push restart and it continues to pop up.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: ubuntuone-control-panel-gtk 0.9.5-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic-pae 2.6.38.2
Uname: Linux 2.6.38-8-generic-pae i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Sun Apr 10 11:38:08 2011
ExecutablePath: /usr/bin/ubuntuone-control-panel-gtk
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/ubuntuone-control-panel-gtk --switch-to volumes
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/ubuntuone-control-panel-gtk', '--switch-to', 'volumes']
SourcePackage: ubuntuone-control-panel
Title: ubuntuone-control-panel-gtk crashed with AttributeError in remove_urgency(): 'gobject.GProps' object has no attribute 'urgent'
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/pymodules/python2.7/ubuntuone-control-panel/ubuntuone/controlpanel/gtk/gui.py", line 1725, in remove_urgency
     if entry.props.urgent:
 AttributeError: 'gobject.GProps' object has no attribute 'urgent'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #755185, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.